Combined friction and jaw clutch.



C. J. WIDMER. OMBINED IRIGTION AND JAW GLUTH Y APPLIUATION FILED MAY 1a,1908.

Patented Dec. 1, 1908'.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT OFFICE.

CHARLES J. WIDMER, OFSIDNEY, OHIO, AssIGNoR To THE PHILIP SMITHMANUFACTURING COMPANY, OF SIDNEY, OHIO, A CORPORATION' OF OHIO.

COMBINED FRICTIONAND JAW CLUTCH.

Specification of Letters Patent.

Patented Dec. 1, 1908.

Application filed May 18, 1908. Serial No. 433,573.

` a combined friction and jaw clutch, which is soconstructed that thefriction clutch is utilized in transmitting the desired speed `to thedriven shaft, whereupon the-jaw clutch may be brought into operationduring the rotation of the shaft; in a similar manner, the jaw clutchmay be thrown out of'operationduring the rotation of the shaft, leavingthe engagement to 'be' effected 'by the friction clutch, whereupon-.the'friction clutch may also be thrownout of operation and vthet'ansmissioniof .power termimited for "tlnty occasion'.A

priately mounting the friction clutchand the Ajaw clutch so that bothmay beI operated through one lever, the construction being such that thevlever may -be manipulated lto aecomplish this result.

It consists .further in various constructions mentioned andtheircombinations 'to formv a combined friction and jaw clutchl which issimple in its construction-and operation-and readily manipulated.v

Referring to the drawings whichare hereto attached and `hereby made .apart of this specifcatiOm-Figure 1 is alongi-tudinal verti cal sectionthrough my improved clutch construction, the parts being in place; Fig.2 is 1 a sideview of the. manipulating lever mounted upon the clutchconstruction Fig. 3 is a view showing the'manner of mounting theoperating construction for the sliding clutch members; Fig. 4 isa'perspective of' the portion of the clutch fixed to the driving shaftshowing the pulley in place thereon; Figp isa perspectlve of theportion'of the jaw clutch mounted upon the driven shaft; Fig. Gis aperspective of the portion of the friction clutch which is mounted uponthe driven shaft. y

In'- the drawings in which the same lnumeral indicates the same partthroughout, 1 is the 4shaft from which the power is `to be taken, whichmay here be called the driving shaft, having mounted. thereon with the iusual spline or key construction 2 the fixed clutch member 3and splinedupon this fixed clutch member at 4 is a pulley 5, which is adapted to beconnected by ay belt in the The fixed clutch member 3 has a bell shapeat its outerv end as'shown at 6, and the inner face 7 of this bellshaped portion 6 is formed for the vpurpose of frictionally engaging theing clutch member; the fixed clutch member also has mounted' therein theteeth 8 appropriately spaced and shaped to form a jaw clutch member.

The shaft to be driven is indicated at 9, andl it has mounted thereonand secured in place by the spline 10 the sliding jaw clutch member 11,having at its inner end the teeth 12.3;.pproximately formed and laced toslide vinto engagement with the teeti 8 above described on the fixedclutch member. Mounted-upon the sliding jaw clutch member 11 and secured`thereon by 'the spline 13 is the sliding friction clutch member 14,having its inner end 15 enlarged and bored out to form the circularrecessl, which is adapted to receive the head 17 of the sliding jawclutch member, and to afford space for the recipro-v cation therein ofsaid sliding jaw clutch member. The endof the enlar ed portion 15isformed with lthe beveled face 18 cir` friction clutch member, 'andwhenthese faces will drive :the sliding clutch member 14, thereby drivingthe shaft 9. Also, when the jaw clutch members are brought into engagment,l the shaft 1 operates to drive the shaft 9.

Mounted upon the sliding friction clutch member 1l is the divided collar19 secured by the bolts 20, 21, each portion of said collar havingprojecting therefrom a pin as shown at 22. A second divided collar 23 is11 and the parts thereof are secured together by the bolts 24 and 25;projecting from the collar 23 are the pins 26 and 27.

The controlling lever 28 is formed with the branches 29 and 30 whichreceive the pins 26 and 27through the slotted openings, one being shownat 31; said lever 28 has an eX- usual way to the engine or to anothershaft. fr

beveled face, hereafter described, on the slid- Cumferentially thereof,being ap )ropriately beveled to engage the face 7 o the fixed' 7 and 18are brought into engagement through friction, the fixed clutch member..`

mounted upon the sliding jaw clutch member tension 32 formed thereonslotted at 33 for the reception of pin 22 on the collar 19. The slot 33is seen to be angular-,Qwhereas the slot 31 is seen to be formedlongitudinally of the lever-28. The controlling lever28 is pivoted atits upper end to the bracket 34 by means of the bolt 35 passing throughthe slotted opening 36; an appropriate handhold 37 is formed at thelower end of the lever.

When the pin 22 is positioned in the vertical portion of the slot 33,the lever 28 is free to be moved upwardly and downwardly, inasmuch asthe pins 22 and 27 and the pivot bolt 35 admit of a sliding movementthereon, the extent of which is determined by the length of the slots;it is also seen that when the transverse portion of the slot 33 receivesthe pin 22, the controlling lever may be moved laterally, that is,longitudinally of the shaft, without disturbing the position of thecollar 19, and consequently without moving the slidable friction clutchmember 14.

The construction just described is formed for the purpose of permittingthe manipulation of the sliding friction clutch member 14 and thesliding jaw clutch member 1l independently of each other, this beingeffected as follows, to wit: Suppose the lever 4to be positioned asshown in Fig. 2, which is the position shown in Fig. 1, 1n section; ifthe lever be pulled outwardly', the engagement of the pin 27 with thelever in the slotted opening 3l, will slide the jaw clutch member 11outwardly away from engagement with .the fixed jaw clutch member 3,without disturbing the position of the friction clutch member 14; thetransverse portion of the slot 33 is of such a length as to permit themovement outwardly of the lever sufficiently to disengage the teeth 12from the teeth 8,v.where upon the driving is effected entirely throughthe friction clutch members. If the outward movement of the controllinglever 28 be continued, the enga ement of the in 22 and the vertical wallo the slot 33 wil cause the friction clutch member 14 to be moved alongthe shaft, thereby disengaging the faces 7 and 18, whereupon the shaft 9will come to rest. To bring the clutches into engagement, the lever 28is moved upwardly, which is permitted by the slots mentioned, until thevertical portion of the slot 33 receives the pin 22, whereupon the lever28 may be moved inwardly along the shaft, whereby the friction clutchmember 14 is moved in` Wai-diy upon the jaw clutch member 11 withoutdisturbing the position of the latter. Frietional engagement is therebyeffected between the faces 18 and 7, whereby the shaft 9 is given thespeed of shaft l. When this has taken place, the lever 28 is drawndownwardly until the transverse portion of the slot 33 receives the pin22, whereupon the lever may be pushed inwardly again; the effect of thisinward movement now is to slide the jaw clutch member 11 along theshaft, into engagement with the fixed jaw clutch member, this engagementbeing effected without difficulty for the reason that the shafts 1 and 9are rotating in unison. A positive clutch is in this manner effected,whereupon the friction clutch member may be thrown out of engagement inthe manner described above.

By the use of the construction described it is seen that thereby shaftmembers may be clutched together while they are running at full speed,the transmission having been effected by the friction clutchconstruction described; also the disengagement of the jaw clutchmay beeffected while the shafts are running at full speed, by engaging thefriction clutches for taking up the transmis` sion, whereupon the jawclutches may be readily disengaged; when this has been done, thefriction clutches may be disengaged, whereupon the driven shaft willcome to rest.

I have provided a combined friction and jaw clutch which is simple inits construction, readily attached to any shaft or detached therefrom,easily manipulated, whereby a positive clutching may be effected orterminated without danger of stripping the teeth or mutilating theclutches, while the shafts are in full speed, the transmission beineffected during the manipulation of the Jaw clutch, by the frictionclutch construction described. The friction faces are beveled and theengagement takes place throughout a comparativelylarge circle and over acomparatively Wide surface; therefore, the wear produced on the frictionfaces is very slight, and on account of the great friction area, thedrive is surely and easily effected. This construction renders the lifeof the friction clutch of great duration.

I desire to claim all modifications of the construction herein shown anddescribed which are within the spirit of my invention.

What I claim is:

l. A combined friction and jaw clutch mounted upon a driven shaftcomprising a jaw clutch member mounted for reciproca,- tion, a frictionclutch member mounted upon said jaw clutch member for reciprocation andhaving an enlarged recessed end in which said jaw clutch member may bereciprocated, a collar loosely mounted on each of said clutch members, asingle controlling lever constructed'to engage said collars in suchmanner that said clutch members may be manipulated in unison orindependently of each other.

2. A combined friction and jaw clutch mounted upon a driven shaftcomprising a jaw clutch member mounted for reciprocation, a frictionclutch member mounted upon said jaw clutch member for reciprocation andhaving an enlarged recessed end Y in which said Jaw clutch member may beindependently of each other, as desired.

3. A combined jaw and friction clutch construction mounted upon a drivenshaft and comprising a slidable jaw clutch member, a slidable frictionclutch member mounted thereon-and containing a recessed head in whichsaid jaw clutch member may be reciprocated, a collar loosely mountedupon each of said clutch members, pins on said collars, a `controllinglever slotted at one endlongitudinally to receive its pivot, and atanother point slotted longitudinally to receive the pins on said jawclutch member, and having an angular slot formed therein for receivingthe pins on said friction clutch member, whereby through the actuationof said lever said clutch members may be manipulated either in unison orindependently of each other as desired.

4. In a combined friction and jaw clutch arranged telescopically, a pinmember on each of said clutch members, a lever provided with means forengaging said pin members and adapted for being positioned thereon tomove said clutch members in unison or singly as desired.

In testimony whereof I afiiX my signature in the presence of twowitnesses.

4 CHARLES J. WIDMER.

Witnesses: I

ANDREW J. Hass, B. D. HECK.

